Files
computer-playbook/tests/unit/python
kevinveenbirkenbachandClaude Opus 5.5 5b7284c4a4 perf(sys-front-inj-matomo): cache a failed site list load so later vhosts skip the dead API
On a host whose Matomo was not deployed yet, every vhost injected before
web-app-matomo asked SitesManager.getSitesWithAtLeastViewAccess again and
waited out uri_retry (30 retries x 2 s): 6 vhosts, 84 to 98 s each, 8.7
minutes in galaxyserver full-2. matomo_site_cache only kept a loaded list.

inject.yml now caches every executed load: the list on success, none on a
failed request or an error mapping. A cache of none skips the cached-id step
and getSitesIdFromSiteUrl, so the existing skip task turns the injection off
for the vhost as before, without the retry wait. web-app-matomo resets the
cache of every play host (delegate_facts, swarm workers included) after
07_config and before 08_reinject_consumers, so the re-injection and every
later vhost load the list from the now running Matomo.

Evidence: the real inject.yml with the real uri_retry against a closed port
and a stub Matomo, 11 vhosts in 4 scenarios: the first probe took 68.6 s, the
next two 0.4 and 0.3 s with matomo off; after the reset a known site came
from the cache, an unknown one went getSitesIdFromSiteUrl -> addSite and was
appended, a later vhost of that domain hit the cache. HEAD inject.yml took
68 s per vhost with the same outcome. The swarm reset reached a second host.
ansible-lint passes; tests/unit/python/roles/sys-front-inj-matomo pins the
gates and the reset order.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-25 12:26:05 +01:00
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